Movement mechanism
A movement mechanism comprises a substantially spherical holder and a substantially bowl-shaped ring, which, when inserted into each other, are rotatable relative to each other about at least one first axis (A), which lies in a plane which is substantially parallel with the top face of the holder. Driving means are provided for enabling movement of the holder relative to the ring. These driving means comprise a non-straight driving rod bearing-mounted in the holder and means for activating the driving rod. The driving rod is further connected with a driving part, which is rotatably mounted in a recess in the ring relative to a second axis (B), which second axis (B) lies in a plane equal or parallel to the top face of the ring, and which second axis (B) lies at an angle of approximately 90° to the first axis (A).
1. A movement mechanism, comprising a substantially spherical holder ( 1 ) and a substantially bowl-shaped ring ( 2 ), which, when inserted into each other, are rotatable relative to each other about at least one first axis (A), which lies in a plane which is substantially parallel with the top face of the holder ( 1 ), while driving means are provided for enabling movement of the holder ( 1 ) relative to the ring ( 2 ), which driving means comprise a non-straight driving rod ( 3 ) bearing-mounted in the holder ( 1 ), as well as means ( 6 , 9 ) for activating the driving rod ( 3 ), characterized in that the driving rod ( 3 ) has the shape of a ring segment and is connected with a driving part ( 4 ), which is rotatably mounted in a recess ( 5 ) in the ring ( 2 ) relative to a second axis (B), which second axis (B) lies in a plane equal or parallel to the top face of the ring ( 2 ), and which second axis (B) lies at an angle of approximately 90° to the first axis (A), wherein the ring segment is rotatable about a third axis (C) which lies in a plane equal or parallel to the top face of the holder ( 1 ) and which lies at an angle of approximately 45° to the first axis (A).
2. A wing mirror for a vehicle, provided with a movement mechanism according to claim 1 .
3. A movement mechanism according to claim 1 characterized in that the recess ( 5 ) has the shape of a slotted hole and the driving part ( 4 ) has the shape of a cylinder, while the length of the slotted hole is substantially oriented in a direction parallel to that of the first axis (A).
4. A movement mechanism according to claim 1 , characterized in that the driving part ( 4 ) is movably connected with the driving rod ( 3 ) in such a manner that, when the driving rod ( 3 ) rotates, a relatively small displacement of the driving part ( 4 ) in substantially a direction parallel to that of the first axis (a) becomes possible.
5. A movement mechanism according to claim 1 , characterized in that the ring is provided with a recess ( 5 ), which is movably arranged in the ring ( 2 ) in such a manner that, when the driving rod ( 3 ) rotates, a relatively small displacement of the recess in substantially a direction parallel to that of the first axis (A) becomes possible.
6. A movement mechanism according to claim 1 , characterized in that the driving rod ( 3 ) is provided with a toothing and can carry out a rotation movement, which is defined relative to an axis which substantially coincides with the third axis (C).
7. A movement mechanism according to claim 6 , characterized in that the means for activating the driving rod ( 3 ) are formed by the driving system ( 9 ) provided with a driven toothed wheel ( 6 ).
8. A movement mechanism according to claim 7 , characterized in that the driving system ( 9 ) is slidable in a direction which is substantially parallel to that of the third axis (C).
9. A movement mechanism according to claim 7 , characterized in that the driven toothed wheel ( 6 ) is provided with a shaft part ( 7 ), which is radially bearing-mounted in a groove ( 8 ) in the driving rod ( 3 ).
10. A movement mechanism according to claim 1 , characterized in that, to enable a movement of the holder relative to the ring about two substantially mutually perpendicular axes, the driving means are provided with a second non-straight driving rod, which is connected with an associated driving part, which is rotatably mounted in a second recess in the ring relative to the first axis (A), while the relevant driving rods are arranged in the holder substantially parallel to each other.